Remove hardcoded hash opclass function signature exceptions

When Who What
2024-09-12 11:27:21 Peter Eisentraut (petere) Closed in commitfest 2024-09 with status: Committed
2024-09-12 11:27:21 Peter Eisentraut (petere) Changed committer to petere
2024-09-09 18:53:40 Tom Lane (tgl) New status: Ready for Committer
2024-09-06 19:33:24 Tom Lane (tgl) Added tgl as reviewer
2024-08-13 04:44:25 Peter Eisentraut (petere) Changed authors to Peter Eisentraut (petere)
2024-08-13 04:44:17 Peter Eisentraut (petere) Attached mail thread 29c3b746-69e7-482a-b37c-dbbf7e5b009b@eisentraut.org
2024-08-13 04:44:17 Peter Eisentraut (petere) Created patch record